Mike Waltz has been dropped as US national security advisor. It's the first big shift in personnel of Donald Trump's second term. Weeks ago, Waltz added a journalist to a chat group of senior officials sharing secret information. Is that why he's being moved - or is there more going on?

In this episode: 

• John Halterwanger, reporter at Foreign Policy Magazine covering U.S. national security
• Amy Koch, a Republican political strategist
• Matthew Bryza, a former U.S. diplomat and National Security Council official at the White House

Host: Nick Clark

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